The cameras are always rolling in Hollywood! When the stars aren't on the red carpet, you'll more than likely find them on set filming their next great blockbuster. Check out these famous actors and actresses in action ...

Stars on set

Idris Elba on the set of 'Luther'

Idris Elba put back on his trusty tweed jacket as he filmed scenes for "Luther" in London on Feb. 15, 2018. The 45-year-old, who recently became engaged to model Sabrina Dhowre, was seen stepping out from behind an ambulance while making a tense phone call in character.